Power takeoff for road vehicle

Abstract

The utility model provides a road vehicle power takeoff which comprises an input part, an output part and a driving part, the input part is connected with a power takeoff connecting position of a gearbox shell through a connecting gasket, the input part comprises a power takeoff gear shaft, a first input gear and a second input gear, the first input gear is connected with the second input gear through a spline, and the second input gear is connected with the output part through a spline. The first input gear and the second input gear are clamped on the power take-off gear shaft through clamp springs; the output part comprises an output shaft and an output gear, and the output gear sleeves the output shaft and is meshed with the second input gear to realize power transmission; the driving part comprises a sliding sleeve, a gear shifting assembly, a reset spring and a pneumatic port, the output gear is sleeved with the sliding sleeve, the reset spring and the pneumatic port are arranged at the two ends of the gear shifting assembly respectively, and the gear shifting assembly drives the sliding sleeve to be connected with the output shaft so that the output shaft can output power. And the requirement that the power takeoff is matched with different gearbox speed ratios is met.

Description

Technical Field

[0001] The present application relates to the technical field of transmissions, and in particular to a power take-off for road vehicles. Background Art

[0002] A power take-off is usually used together with a power source such as a transmission to provide driving power to an accessory device. A power take-off is used on a road vehicle to provide power to an accessory device, such as an oil pump, a water pump, a motor, a compressor, a hinge plate or a fan. With the continuous development of domestic road vehicle gearboxes, the field of road vehicles is constantly subdivided and expanded, and the requirements for gearboxes are also constantly increasing.

[0003] As the requirements for power and economy of the whole vehicle are getting higher and higher, there are more requirements for the speed ratio of the gearbox. The gearbox speed ratios of different models of vehicles are also different. This leads to the need to design multiple models of power take-offs to match the gearboxes of special vehicles with different speed ratios. When facing gearboxes with different speed ratios, it is necessary to redesign the structure of the power take-off and redesign the parts such as the power take-off housing, which is time-consuming and labor-intensive, and reduces versatility.

[0004] Therefore, a road vehicle power take-off is needed to solve the above problems. Utility Model Content

[0005] In view of this, in order to overcome the defects of the prior art, the utility model provides a power take-off for road vehicles, which effectively solves the problem that when the gearbox speed ratio is different, the power take-off structure needs to be redesigned, and solves the problem that the power take-off housing and other parts need to be redesigned to match the gearbox and the power take-off.

[0006] According to a power take-off for a highway vehicle provided by the utility model, the power take-off is installed at a power take-off connection position of a gearbox housing, wherein the power take-off for a highway vehicle comprises an input part, an output part and a driving part, the input part is connected to the power take-off connection position of the gearbox housing through a connecting gasket, the input part comprises a power take-off gear shaft, a first input gear and a second input gear arranged on the power take-off gear shaft, the first input gear is connected to the second input gear through a spline, and the first input gear and the second input gear are clamped on the power take-off gear shaft through a retaining spring; the output part comprises an output shaft and an output gear, the output gear is sleeved on the output shaft and meshed with the second input gear to achieve power transmission; the driving part comprises a sliding sleeve, a shift assembly, a return spring and a pneumatic port, the sliding sleeve is sleeved on the output gear, the return spring and the pneumatic port are respectively arranged at two ends of the shift assembly, and the shift assembly drives the sliding sleeve to connect with the output shaft so that the output shaft outputs power.

[0007] Preferably, the power take-off for road vehicles further comprises a power take-off housing, and the power take-off gear shaft is arranged inside a hole opened in the power take-off housing; the input part further comprises a roller bearing, and the roller bearing is arranged between the first input gear and the second input gear, and the roller bearing is sleeved on the power take-off gear shaft.

[0008] Preferably, the sliding sleeve is connected to the output gear via a spline.

[0009] Preferably, the output part further includes a first conical bearing, a second conical bearing, a thrust washer and a flange, the first conical bearing and the second conical bearing are respectively sleeved on both ends of the output shaft, the first conical bearing and the second conical bearing are both arranged inside the power take-off housing, the flange is connected to the output shaft through a spline, and the thrust washer is arranged between the output gear and the second conical bearing.

[0010] Preferably, the output part also includes a first output bearing cover, a bolt assembly and a sealing gasket, the first output bearing cover is arranged on the power take-off housing through the bolt assembly, the setting position of the first output bearing cover corresponds to the first tapered bearing, and the sealing gasket is arranged between the power take-off housing and the first output bearing cover to achieve sealing.

[0011] Preferably, the shift assembly includes a shift fork and a shift shaft, the shift fork is sleeved on the shift shaft, the shift fork is connected to the sliding sleeve to drive the sliding sleeve to move, the return spring is sleeved on the shift shaft and connected to the shift fork; one end of the driving part is also provided with a switch assembly for displaying whether the power take-off for road vehicles is in a working state; the other end of the driving part is provided with a cylinder head connected to the power take-off housing, and the cylinder head is provided with the pneumatic port.

[0012] Preferably, the output part also includes a skeleton oil seal, a second output bearing cover, a flange nut and a cotter pin. The second output bearing cover is arranged on the power take-off housing through a bolt assembly. The setting position of the second output bearing cover corresponds to the second tapered bearing. The skeleton oil seal is arranged on the second output bearing cover, and the second output bearing cover is sleeved on the flange. The flange includes a flange nut, and the cotter pin is connected to the flange nut to fix the flange nut.

[0013] Preferably, the input part further includes a spacer sleeve, and the spacer sleeve is connected to the roller bearing to compress the roller bearing.

[0014] Preferably, the power take-off gear shaft is provided with a groove, the groove is provided with a locking plate and a locking plate bolt, the locking plate is fixedly connected to the power take-off gear shaft via the locking plate bolt, and the locking plate is used for axial positioning of the power take-off gear shaft.

[0015] Preferably, the input part further includes a gear shaft gasket and a needle roller bearing, and the gear shaft gasket and the needle roller bearing are sleeved on the power take-off gear shaft.

[0016] According to the power take-off for road vehicles of the utility model, a first input gear and a second input gear are specially provided, and the first input gear and the second input gear are connected by a spline. A connecting gasket is also provided between the power take-off housing and the gearbox housing. When the speed ratio of the gearbox itself changes, the center distance changes due to changes in gear parameters, which can be adjusted by selecting connecting gaskets of different thicknesses, thereby reducing the type changes of the power take-off housing and meeting the requirements of matching the power take-off with different gearbox speed ratios.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a power take-off for a highway vehicle according to an embodiment of the utility model is shown;

[0020] Figure 2 A schematic diagram showing the installation structure of the connection gasket according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic structural diagram of a connecting gasket according to an embodiment of the utility model is shown.

[0022] Figure markings: 1-first input gear; 2-roller bearing; 3-power take-off gear shaft; 4-second input gear; 5-sliding sleeve; 6-output gear; 7-output shaft; 8-first output bearing cover; 9-first cone bearing; 10-bolt assembly; 11-sealing gasket; 12-shift fork; 13-reset spring; 14-switch assembly; 15-switch gasket; 16-shift shaft; 17-power take-off housing; 18-first sealing ring; 19-cylinder head; 20-thrust gasket; 21-skeleton oil seal; 22-second sealing ring; 23-cotter pin; 24-flange gasket; 25-flange nut; 26-flange; 27-second output bearing cover; 28-spacer; 29-locking plate; 30-locking plate bolt; 31-gear shaft gasket; 32-needle bearing; 33-circlip; 34-connecting gasket; 35-disassembly threaded hole. DETAILED DESCRIPTION

[0023] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0025] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0026] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0027] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0028] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0029] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0030] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0032] According to a power take-off device for a highway vehicle provided by the utility model, Figures 1 to 3 As shown, the power take-off for a road vehicle is used for a road vehicle and can be used together with a transmission. The power take-off for a road vehicle comprises an input portion, an output portion and a driving portion.

[0033] In the following description, reference will be made to Figures 1 to 3 The detailed structures of the input part, output part and driving part of the power take-off for highway vehicles are described in detail. In addition, it should be noted that the description of the embodiment involves two directions, left and right. Figure 1 The left and right sides of Figure 1 Move to the left, move to the right is Figure 1 Move to the right.

[0034] like Figure 1 As shown, in the embodiment, the input part is connected to the power take-off connection position (not shown) of the transmission housing through a connecting gasket 34, and the input part may include a power take-off gear shaft 3, a first input gear 1 and a second input gear 4 arranged on the power take-off gear shaft 3, the first input gear 1 is connected to the second input gear 4 through a spline, and the first input gear 1 and the second input gear 4 are clamped on the power take-off gear shaft 3 through a retaining spring 33, and the retaining spring 33 can realize the axial positioning of the first input gear 1 and the second input gear 4.

[0035] The output part may include an output shaft 7 and an output gear 6, the output gear 6 is sleeved on the output shaft 7 and meshes with the second input gear 4 to achieve power transmission. The driving part may include a sleeve 5, a shift assembly, a return spring 13 and a pneumatic port, the sleeve 5 is sleeved on the output gear 6, the return spring 13 and the pneumatic port are respectively arranged at both ends of the shift assembly, and the shift assembly drives the sleeve 5 to connect with the output shaft 7 so that the output shaft 7 outputs power.

[0036] like Figure 2 and Figure 3 As shown, in the embodiment, the connection gasket 34 can be formed as a square-shaped structural block with a certain thickness. When the gearbox is connected to the power take-off, when the speed ratio of the gearbox changes, the change in the parameters of each gear will cause the center distance to change. At this time, the connection gasket 34 can be provided to change it, which reduces the change to the internal structure of the power take-off and the power take-off housing 17, and the change is small.

[0037] The power take-off for road vehicles is a redesign of the original power take-off. The first input gear 1 and the second input gear 4 are respectively installed on the power take-off gear shaft 3 of the power take-off, and the two are connected by a spline. At the same time, a connecting gasket 34 of a certain thickness is installed between the power take-off side of the gearbox housing and the power take-off housing 17 side for intermediate transition connection, so that the power take-off for road vehicles can match gearboxes with different speed ratios, with small overall changes and a simple overall structure of the power take-off, so that the power take-off can match gearboxes with different speed ratios.

[0038] Preferably, if Figure 2 and Figure 3 As shown, in the embodiment, a plurality of disassembly threaded holes 35 are provided around a connection gasket 34 formed in a U-shape, and the power take-off connection position of the gearbox housing, the power take-off housing 17 and the connection gasket 34 are connected by using connecting stud bolts, and a plurality of connecting stud bolts are passed through a plurality of disassembly threaded holes 35 to achieve fixed installation.

[0039] Preferably, if Figure 1 As shown, in the embodiment, the power take-off for highway vehicles further includes a power take-off housing 17, and the power take-off gear shaft 3 is arranged inside the hole opened in the power take-off housing 17, and is axially positioned by the locking plate 29 described below. The input part may also include a roller bearing 2, which is arranged between the first input gear 1 and the second input gear 4, and the roller bearing 2 is sleeved on the power take-off gear shaft 3. The roller bearing 2 is installed in the inner holes of the power take-off gear shaft 3 and the first input gear 1 and the second input gear 4, and plays a supporting role. The power take-off gear shaft 3 plays a supporting role for the roller bearing 2.

[0040] Preferably, if Figure 1 As shown, in the embodiment, the sleeve 5 is connected to the output gear 6 by a spline. Specifically, the sleeve 5 is mounted on the spline of the output gear 6, and the gear engagement and disengagement of the power take-off are achieved by moving left and right. The output gear 6 is mounted on the output shaft 7 for transmitting power.

[0041] Preferably, if Figure 1 As shown, in the embodiment, the output part may further include a first cone bearing 9, a second cone bearing, a thrust washer 20 and a flange 26, and the first cone bearing 9 and the second cone bearing are respectively sleeved on both ends of the output shaft 7. The first cone bearing 9 and the second cone bearing are both arranged inside the power take-off housing 17, the flange 26 is connected to the output shaft 7 through a spline, and the thrust washer 20 is arranged between the output gear 6 and the second cone bearing. The first cone bearing 9 and the second cone bearing are arranged at both ends of the output shaft 7 relatively. The output shaft 7 is installed in the inner holes of the left and right cone bearings (i.e., the first cone bearing 9 and the second cone bearing), and the output shaft 7 is connected to the flange 26 through a spline to achieve power output. The thrust washer 20 is used to press the output gear 6 and contact the inner ring of the second cone bearing.

[0042] Preferably, if Figure 1As shown, in the embodiment, the output part may further include a first output bearing cap 8, a bolt assembly 10 and a sealing gasket 11. The first output bearing cap 8 is arranged on the power take-off housing 17 through the bolt assembly 10. The arrangement position of the first output bearing cap 8 corresponds to the first cone bearing 9. The sealing gasket 11 is arranged between the power take-off housing 17 and the first output bearing cap 8 to achieve sealing. The first output bearing cap 8 is connected to the power take-off housing 17 through the bolt assembly 10, which plays the role of positioning the outer ring of the bearing and sealing. The first cone bearing 9 is installed inside the power take-off housing 17 to play a supporting role. The bolt assembly 10 may be a rubber-coated bolt member, which is used to connect the power take-off housing 17 and the first output bearing cap 8. The sealing gasket 11 plays the role of sealing the power take-off housing 17 and the first output bearing cap 8.

[0043] Preferably, if Figure 1 As shown, in the embodiment, the shift assembly may include a shift fork 12 and a shift shaft 16, the shift fork 12 is sleeved on the shift shaft 16, the shift fork 12 is connected to the sliding sleeve 5 to drive the sliding sleeve 5 to move left and right, and the return spring 13 is sleeved on the shift shaft 16 and connected to the shift fork 12. A switch assembly 14 for displaying whether the road vehicle power take-off is in a working state is also provided at one end of the driving part. A cylinder head 19 connected to the power take-off housing 17 is provided at the other end of the driving part, and the cylinder head 19 is provided with a pneumatic port. The shift fork 12 is used to push the sliding sleeve 5 to move left and right, and the return spring 13 is used to drive the shift fork 12 to move rightward, so that the road vehicle power take-off is in a neutral position and does not output power. The switch assembly 14 is installed on the power take-off housing 17 through a switch gasket 15, and the switch assembly 14 is used to display whether the road vehicle power take-off is in a working state.

[0044] The shift shaft 16 itself has a piston and is connected to the shift fork 12 through an elastic cylindrical pin (not shown). When there is high-pressure gas in the cavity of the shift assembly, the shift shaft 16 moves to the left to achieve gear engagement. The first sealing ring 18 is used to seal the gas on the left and right sides of the shift assembly to prevent the left and right sides from being connected. The cylinder head 19 is connected to the power take-off housing 17 for the entry of high-pressure gas in the vehicle.

[0045] Preferably, if Figure 1As shown, in the embodiment, the output part may further include a skeleton oil seal 21, a second output bearing cover 27, a flange nut 25 and a split pin 23. The second output bearing cover 27 is arranged on the power take-off housing 17 through a bolt assembly 10. The arrangement position of the second output bearing cover 27 corresponds to the second cone bearing. The skeleton oil seal 21 is arranged on the second output bearing cover 27, and the second output bearing cover 27 is sleeved on the flange 26. The flange 26 includes a flange nut 25, and the split pin 23 is connected to the flange nut 25 to fix the flange nut 25. The skeleton oil seal 21 may be a skeleton rubber oil seal, and the skeleton oil seal 21 is located in the hole of the second output bearing cover 27 to prevent the external granular impurities of the gearbox from entering the interior of the gearbox. The second sealing ring 22 is located between the step of the output shaft 7 and the flange gasket 24, and plays a sealing role. The split pin 23 is used to fix the flange nut 25 to prevent the flange nut 25 from loosening after the highway vehicle power take-off is used for a period of time. The flange 26 is connected to the output shaft 7 through a spline, and is used to be connected to the input end of the power take-off pump. The second output bearing cover 27 is used to press the outer ring of the second tapered bearing.

[0046] Preferably, if Figure 1 As shown, in the embodiment, the input part may further include a spacer sleeve 28, and the spacer sleeve 28 is connected to the roller bearing 2 to press the roller bearing 2 to prevent the roller bearing 2 from axial movement.

[0047] Preferably, if Figure 1 As shown, in the embodiment, the power take-off gear shaft 3 is provided with a groove, the groove is provided with a locking plate 29 and a locking plate bolt 30 , the locking plate 29 is fixedly connected to the power take-off gear shaft 3 via the locking plate bolt 30 , and the locking plate 29 is used for axial positioning of the power take-off gear shaft 3 .

[0048] Preferably, if Figure 1 As shown, in the embodiment, the input part may further include a gear shaft gasket 31 and a needle bearing 32, which are sleeved on the power take-off gear shaft 3. The gear shaft gasket 31 and the needle bearing 32 are used together to prevent the inner cavity of the support hole from being worn due to the axial force in the right direction.

[0049] In summary, the first input gear 1 and the second input gear 4 of the power take-off for highway vehicles are connected by splines, and the roller bearing 2 is installed in the inner control of the two gears. The power take-off gear shaft 3 is installed in the hole of the power take-off housing 17 and is axially fixed by a locking plate 29. The sliding sleeve 5 is installed on the spline of the output gear 6, and the output gear 6 is installed on the output shaft 7 of the power take-off. One end of the output shaft 7 is positioned by a shaft shoulder, and the other end is positioned by a thrust washer 20. The output shaft 7 is installed in the hole of the power take-off housing 17, and the output bearing cover presses the outer end of the cone bearing and is fixed to the power take-off housing 17 by a bolt assembly 10. The shift fork 12 is installed on the shift shaft 16 and connected by an elastic pin. The shift shaft 16 is installed in the hole of the power take-off housing 17 for connecting the cylinder and the shift fork 12, the return spring 13 is installed on the shift shaft 16, and the switch assembly 14 and the switch gasket 15 are installed in the support hole of the power take-off housing 17. When the power take-off is working, it plays a display role on the instrument panel. The skeleton oil seal 21 is installed between the flange 26 and the second output bearing cover 27 to play a sealing role.

[0050] The use process of the power take-off for road vehicles is as follows: when there is no high-pressure gas inside the shift assembly of the power take-off housing 17, under the action of the reset spring 13, the shift shaft 16 drives the shift fork 12 to move rightward, and the shift fork 12 drives the sliding sleeve 5 to move together, and the power take-off for road vehicles is in an idling state, and the power take-off has no output. When there is high-pressure gas inside the shift assembly of the power take-off housing 17, the shift shaft 16 drives the shift fork 12, and the shift fork 12 compresses the reset spring 13 and moves to the left together, and the reset spring 13 drives the sliding sleeve 5 to move to the left together, and the output gear 6 rotates to drive the sliding sleeve 5 to rotate, and the sliding sleeve 5 rotates to drive the output shaft 7, and the output shaft 7 drives the flange 26, and the power take-off is in a working state to achieve power output.

[0051] The power take-off for a road vehicle is specially provided with a first input gear and a second input gear, which are connected by a spline, and a connecting gasket is also provided between the power take-off housing and the gearbox housing. When the speed ratio of the gearbox itself changes, the center distance changes due to the change in gear parameters, which can be adjusted by selecting connecting gaskets of different thicknesses, thereby reducing the type of changes in the power take-off housing and meeting the requirements of matching the power take-off with different gearbox speed ratios.

[0052] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A power take-off for a road vehicle, mounted at a power take-off connection position of a gearbox housing, characterized in that: The road vehicle power take-off comprises: An input part, an output part and a driving part, wherein the input part is connected to the power take-off connection position of the transmission housing through a connecting gasket, the input part comprises a power take-off gear shaft, a first input gear and a second input gear arranged on the power take-off gear shaft, the first input gear is connected to the second input gear through a spline, and the first input gear and the second input gear are clamped on the power take-off gear shaft through a retaining spring; The output part comprises an output shaft and an output gear, wherein the output gear is sleeved on the output shaft and meshes with the second input gear to realize power transmission; The driving part includes a sliding sleeve, a shift assembly, a return spring and a pneumatic port. The sliding sleeve is mounted on the output gear. The return spring and the pneumatic port are respectively arranged at two ends of the shift assembly. The shift assembly drives the sliding sleeve to connect with the output shaft so that the output shaft outputs power.

2. The power take-off for a road vehicle according to claim 1, characterized in that: The road vehicle power take-off device further comprises a power take-off housing, and the power take-off gear shaft is arranged inside a hole formed in the power take-off housing; The input part further includes a roller bearing, which is disposed between the first input gear and the second input gear, and is sleeved on the power take-off gear shaft.

3. The power take-off for a road vehicle according to claim 1, characterized in that: The sliding sleeve is connected to the output gear via a spline.

4. The power take-off for a road vehicle according to claim 2, characterized in that: The output part also includes a first conical bearing, a second conical bearing, a thrust washer and a flange. The first conical bearing and the second conical bearing are respectively sleeved on both ends of the output shaft. The first conical bearing and the second conical bearing are both arranged inside the power take-off housing. The flange is connected to the output shaft through a spline. The thrust washer is arranged between the output gear and the second conical bearing.

5. The power take-off for a road vehicle according to claim 4, characterized in that: The output part also includes a first output bearing cover, a bolt assembly and a sealing gasket. The first output bearing cover is arranged on the power take-off housing through the bolt assembly. The setting position of the first output bearing cover corresponds to the first cone bearing. The sealing gasket is arranged between the power take-off housing and the first output bearing cover to achieve sealing.

6. The power take-off for a road vehicle according to claim 2, characterized in that: The shift assembly comprises a shift fork and a shift shaft, wherein the shift fork is sleeved on the shift shaft, the shift fork is connected to the sliding sleeve to drive the sliding sleeve to move, and the return spring is sleeved on the shift shaft and connected to the shift fork; One end of the driving part is also provided with a switch assembly for indicating whether the road vehicle power take-off is in a working state; The other end of the driving part is provided with a cylinder head connected to the power take-off housing, and the cylinder head is provided with the pneumatic port.

7. The power take-off for a road vehicle according to claim 4, characterized in that: The output part further includes a skeleton oil seal, a second output bearing cover, a flange nut and a split pin, the second output bearing cover is arranged on the power take-off housing through a bolt assembly, the arrangement position of the second output bearing cover corresponds to the second cone bearing, the skeleton oil seal is arranged on the second output bearing cover, and the second output bearing cover is sleeved on the flange; The flange includes a flange nut, and the cotter pin is connected to the flange nut to fix the flange nut.

8. The power take-off for a road vehicle according to claim 2, characterized in that: The input part further includes a spacer sleeve connected to the roller bearing to compress the roller bearing.

9. The power take-off for a road vehicle according to claim 1, characterized in that: The power take-off gear shaft is provided with a groove, and the groove is provided with a locking plate and a locking plate bolt. The locking plate is fixedly connected to the power take-off gear shaft via the locking plate bolt, and the locking plate is used for axial positioning of the power take-off gear shaft.

10. The power take-off for a road vehicle according to claim 1, characterized in that: The input part further includes a gear shaft gasket and a needle roller bearing, and the gear shaft gasket and the needle roller bearing are sleeved on the power take-off gear shaft.

Images